I'm trying to conditionally provide resource property values through translation of runtime resource properties within a copyIndex loop..
Upon deploying the following ARM template, I receive the error:
Unable to process template language expressions for resource '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroup}/providers/Microsoft.Compute/virtualMachines/{vm-name}/extensions/Microsoft.EnterpriseCloud.Monitoring' at line '30' and column '10'. 'The template resource '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroup}/providers/Microsoft.Compute/virtualMachines/{vm-name}' is not found.' (Code: InvalidTemplate)
"type": "[variables('extensionType')[reference(concat('Microsoft.Compute/virtualMachines/', parameters('virtualMachines')[copyIndex()].name)).storageProfile.osDisk.osType]]",
However, the VM exists with the ID it provides, so it doesn't make sense that the engine cannot find it. If I hard-code the Extension Type, there are no errors and the Extension is installed on the VM with the same ID.
Unfortunately, I don't know if this is a bug within ARM or if I'm just doing something wrong..
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspaceResourceId": { "type": "string" },
"virtualMachines": { "type": "array" }
},
"variables": {
"extensionType": {
"Windows": "MicrosoftMonitoringAgent",
"Linux": "OmsAgentForLinux"
}
},
"resources": [
{
"copy": {
"name": "VMMonitoringExtensionsCopy",
"count": "[length(parameters('virtualMachines'))]"
},
"type": "Microsoft.Compute/virtualMachines/extensions",
"apiVersion": "2015-05-01-preview",
"location": "[parameters('virtualMachines')[copyIndex()].location]",
"name": "[concat(parameters('virtualMachines')[copyIndex()].name, '/Microsoft.EnterpriseCloud.Monitoring')]",
"properties": {
"publisher": "Microsoft.EnterpriseCloud.Monitoring",
"type": "[variables('extensionType')[reference(concat('Microsoft.Compute/virtualMachines/', parameters('virtualMachines')[copyIndex()].name)).storageProfile.osDisk.osType]]",
"typeHandlerVersion": "1.0",
"autoUpgradeMinorVersion": true,
"settings": {
"workspaceId": "[reference(parameters('workspaceResourceId'), '2015-11-01-preview').customerId]"
},
"protectedSettings": {
"workspaceKey": "[listKeys(parameters('workspaceResourceId'), '2015-11-01-preview').primarySharedKey]"
}
}
}
]
}
The object array being passed in for virtualMachines looks like this:
[
{ "name": "vm-name", "location": "azure-region" }
]